Net Loss per Share - Schedule of Basic and Diluted Net Loss per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2023
Numerator:
Net loss	$ (1,289,212)	$ (837,990)	$ (797,526)
Less: comprehensive loss attributable to noncontrolling interest	(3,572)	(1,893)	(821)
Net loss attributable to Snowflake Inc.	$ (1,285,640)	$ (836,097)	$ (796,705)
Denominator:
Weighted-average shares used in computing net loss per share attributable to Snowflake Inc. Class A common stockholders—basic (in shares)	332,707	328,001	318,730
Weighted-average shares used in computing net loss per share attributable to Snowflake Inc. Class A common stockholders—diluted (in shares)	332,707	328,001	318,730
Net loss per share attributable to Snowflake Inc. Class A common stockholders—basic (in dollars per share)	$ (3.86)	$ (2.55)	$ (2.50)
Net loss per share attributable to Snowflake Inc. Class A common stockholders—diluted (in dollars per share)	$ (3.86)	$ (2.55)	$ (2.50)